Finding the Fourth Proportional to 28,569,430.26, 39,419,680.05 and 16,970,904.18
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Solution
The fourth proportional to 28,569,430.26, 39,419,680.05 and 16,970,904.18 is: 23,416,204.20
Step by Step Solution
- Step 1: Write the proportion equation
28,569,430.26 : 39,419,680.05 = 16,970,904.18 : x - Step 2: Convert to fraction form
28,569,430.26/39,419,680.05 = 16,970,904.18/x - Step 3: Cross multiply
28,569,430.26x = 39,419,680.05 × 16,970,904.18 - Step 4: Simplify right side
28,569,430.26x = 668,987,612,934,807.50 - Step 5: Solve for x
x = 668,987,612,934,807.50/28,569,430.26 - Step 6: Final answer
x = 23,416,204.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.